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Case Reports: Rare disease
Synovial chondromatosis of the flexor hallucis longus tendon sheath
  1. Conor B Garry1,2,
  2. Andrew Ernst2,
  3. Galen Sanderson2 and
  4. Andrew W Wilson1
  1. 1Department of Orthopaedic Surgery, University of Tennessee Health Science Center College of Medicine Chattanooga, Chattanooga, Tennessee, USA
  2. 2Department of Orthopaedic Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
  1. Correspondence to Andrew W Wilson; andrew-wilson{at}tennessee.edu

Abstract

This case report discusses a rare case of secondary tenosynovial chondromatosis of the flexor hallucis longus (FHL). Synovial chrondomatosis is a rare, benign proliferative cartilaginous lesion arising from the synovial tissue or bursal lining of or near joints. When it is extra-articular, it is considered tenosynovial chondromatosis. The diagnosis is often delayed given the rarity of presentation and non-specific symptoms. The case was highly unusual in that hindfoot pain was caused by several centimetre-sized osteochondral bodies within the FHL tendon sheath. Anterior cheilectomy was performed. The patient returned to full activity following surgery without recurrence of the disease. The condition can be successfully treated operatively.

  • Orthopaedic and trauma surgery
  • Ankle instability
  • Sports and exercise medicine
  • Orthopaedics

https://doi.org/10.1136/bcr-2022-252067

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    Footnotes

    • Contributors GS: Author, Care. AE: Author, Care, patient consent. CBG: Author, Care. AWW: Author, editor.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Disclaimer The views expressed in this case report are those of the authors and do not necessarily reflect the official policy or position of the Department of the Navy, Department of Defense, or the United States Government.

      Copyright Statement: We are military service members. This work was prepared as part of our official duties. Title 17 U.S.C. 105 provides that “Copyright protection under this title is not available for any work of the United States Government.” Title 17 E.S.C. 101 defines a United States Government work as a work prepared by a military service member or employee of the United States Government as part of that person’s official duties.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.